Maybe you could combine those two ideas. Have a really tiny bug in the logic electronics somewhere that transmits at extremely low power, then have a bigger thi

Maybe you could combine those two ideas. Have a really tiny bug in the logic electronics somewhere that transmits at extremely low power, then have a bigger thing in a power capacitor that receives those and retransmits the data at higher power. IANAEE, though, so I could be talking nonsense. As far as the size goes, is there any tradeoff between size and price? If there’s a more expensive design that occupies less volume, an attacker could use that design, use the extra space for the bug, then sell the whole thing as if it were the cheaper version. You probably couldn’t do this for all of your capacitors, since it would cost a lot. Maybe 1% would be enough to have a good chance of getting a bug somewhere interesting.